Have you ever noticed the different layers of sand when you dig a hole on the beach? Sand is composed of tiny grains of minerals, but did you know that some of these grains are heavier than others. Lightly-colored sand, which is composed mainly of quartz is lighter than darkly-colored sand, which has other minerals, like iron, in each grain. The sand you see on the beach is constantly changing … [Read more...]

The beauty of a sunset can take your breath away. The reds, pinks, oranges, and yellows can be stunning, but why don’t we see this every night? Sunset is the time of day when the sun dips below the horizon. As this happens, the light from the sun travels a farther distance. During this journey, the different wavelengths or light are scattered by water and dust in the atmosphere. The shorter … [Read more...]

If you have been to the beach, you have most likely seen sand dunes. They are those bumps you have to traverse before you get to the real prize - the beach! But did you know that those dunes serve a purpose? Today, we are going to dig into the dunes and learn about this amazing ecosystem. There are interior sands dunes, like the ones you find at the Great Sand Dunes National Park in Colorado, … [Read more...]